I'm trying to query for the Bitcoin price and ETH, LTC, XMR, and a few others. But many of the api sites like coinmarketcap.com requires signing up to an api key. Is there a FREE api service that can ...

What I noticed is that prices in different fiat currencies on the same market for the same crypto currency are different. But what are the reasons behind that? Does it has anything to do with market ...

Say we have TheBestCryptoMarketSiteEver.com
I have $1000.
I buy BTC with those
I buy ETH with the BTC
I buy LTC with the ETH
I buy USD With the LTC
There's a fee for each of those transaction 0.1% - ...

For instance on Binance I have the bid and ask price in BTC for every coin. How do I get the USD buy and sell prices of that coin? Do I use the BTC/USDT buy price? Or sell price? Or both? How exactly ...

I'm curious on why would bitcoin rise in the near future since its not affordable anymore. It's actually but for wealthy people only. How could it even reach mass adoption because of its extreme price?...

Lets say that $1B worth of money is going in to bitcoin and its current market cap is $100B. How much would the market cap increase with that $1B?
Would it go to $101B, $105B, $110B, $100.1B?
I know ...

I'm trying to use XChange api to build trading bot
I have inported the open source maven project into eclipse. I can run the code all right within the ide
I followed the steps at
https://github.com/...

I have created an android app for maintaining the portfolio. I have used the coinmarketcap.com API. This API does not have the data at exchange level.
I have tried https://min-api.cryptocompare.com/ ...

The goal of this question is to explore what the correlation is between the cost of the total energy consumption behind a PoW-based cryptocurrency and its price.
Obviously, the cost of mining cannot ...

For example, when bitcoin moves up/down, most other cryptocurrencies also move for a similar amount. What is the reason behind this? I almost see no point in investing in different cryptocurrencies, ...

I can't seem to find a solid answer for this but looking at a chart that I have linked below, this altcoin (altcoin X) has a price that is based on BTC from an exchange that is only a crypto exchange. ...

If the value of bitcoin where to drop significantly to amost no value would altcoins be affected ?
i guess they would because usually we convert to BTC before cashing out into fiat but wanted other ...

i don't know if this is the right place to ask this, but i haven't found a proper one to do so, so here we go :
I wanna get only the LAST OHLCV candle from multiple markets with the cryptocompare api ...

My question deals with all the cryptoexchanges out there that only accept and use cryptocurrencies. How is it that for example, LTC's price is based off of BTC on some excahnges (on the y-axis of a ...

how is the price of any cryptocurrency computed, how is the math equation and who actually does it? if you would say a trading site like Coinbase then i say there are also currencies that are i guess ...

This is not a duplicate! There are several similar questions, but they concern mining or other specific questions. This is not about mining.
Lets look at a specific situation. Lets say the value of ...

I want to purchase some BTC. Because of the fact that BTC demand is high and supply is low in South Korea, its price is very high (Korbit 07.12.17: 17394 USD).
As I am currently living in Korea, are ...

I bought 200 ($700 worth) bitcoins in 2012, and I found them last week. Now, my wallet says they are worth $2371959.00 apparently. Is this a scam or do I need to sync my wallet? The computer is pretty ...

I am new to Bitcoin. I have a very basic knowledge of Bitcoin. I didn't understand how its price is determined. I will give you an example below, correct me, do I have the correct knowledge.
Example: ...

If I buy half a bitcoin at $500 and the value of a bitcoin goes up to $1000, does that mean I earn 1 bitcoin or do I have to buy a full bitcoin to get the price increase? How does it work? Please give ...

Is there a physical mechanism that determines and maintains the price of cryptocurrencies, be it a robot or a human? Let's say there is a price surge and the first buyer bought a crypto unit at $1. ...

If I chose to accept Bitcoin as a payment for my product, and the price of the bitcoin goes up or down, then technically I am not getting as much for my product in the long run correct? Because the ...

I'm pulling tickers from Poloniex using this python API wrapper, with intervals of 1800 seconds.
I get back dictionaries that look like this (here I show two consecutive ones for 'BTC_XRP'):
{'close'...

If I wanted to create a digital coin (asset) and wanted to keep the value of that coin steady (Think a dollar. It's worth a dollar today and a dollar tomorrow and a dollar every day.) What would be ...